Electricity today is a very important source of life. Almost all life activities depend on electricity. Power cuts or power outages cause some activities to stop. Power outages are caused by other electrical activities, of course, which have the same path. For example, the installation of several towers or power poles, time-consuming cable repairs. In addition, there are causes outside of electrical activity, namely the occurrence of fire disasters. To avoid things that are not desirable, of course, must be quick to respond to this by turning off electricity en masse. What can happen, of course, is that neither party benefits.

D
This is not opinion based therefore it is true
I’m not sure but probably because we don’t use each other for commercial uses
One is B two is A and three I’m pretty sure is C